Multi-element diagrams for sediments

The average trace element concentration in a Phanerozoic quartzite is given by Baryta and Condie (1990) for 18 elements these values may be used in quartzite normalization (Table 4.9). Trace elements in marbles and calc- ilicate rocks were normalized to average Phanerozoic limestone (Condie et a/, 1991). The normalizing values are listed in Table 4.9. To minimize the effect of varying amounts of carbonate, CZondie et al. (1991) also normalized their elemental concentrations to AI2O3. 

Interpreting Cullers (1988) showed that the silt fraction of a sediment most closely reflects the multi-element provenance of the sediment. The feldspars and sphene control concentrations of Ba, diagrams for Na, Rb and Cs ferromagnesian minerals control die concentradons of Ta Fe, Co, sediments Sc and Cr Hf is controlled by zircon and the REE and Th are controlled by sphene. The rados La/Sc, Th/Sc, La/Co, Th/Co, Eu/Sm and La/Lu are also good indicators of provenance. 

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